Self-dumping machine for blast-furnaces



No. '6|5,730. Patented Dec. I3, |898. F. 0. MILLER.

SELF DUMPING MACHINE FUR BLAST FUBNAGES, 81.0. v

(Application led Oct. 26, 1897.) (Nq Model.) 2 Sheets-Sheet I.

"HI" "Il l n .aMz/ef l By 1/r ATTORNEY.

ma Nonms PETERS co. Moro-uma., wmnoon, n c.

Patented Dec. I3, |898.

F. 0. MILLER.

SELF DUMPING MACHINE FOR BLAST FURNACES, 8m.'

(Applicatibn filed Oct. 26, 1897.)

(No Model.)

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W/TNESSES 1n: Nonms Pains co., Nom-umn. w maren. p. x:4

UNITED STATES PATENT OFFICE.

FRANK O. MILLER, OF YOUNGSTOIVN, OHIO.

SVELF-DUIVI'PING MACHINE FOR BLAST-FURNACES, 86C.'

SPECIFICATION forming part of Letters Patent No. 615,730, dated December 13, 1898.

` Application filed October 26, 1897. Serial No. 656,462. (No model.)

To all whom, it may concern:

Be it known that I, FRANK O. MILLER, a citizen of the United States of America, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented certain new and useful Improvements in Self-Dumping Machines for Blast-Furnaces and the Like, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in self-dumping machines for blast-furnaces and the like, and has for its object to provide means for-loading ore, coke, lime, or any material of like nature into the dump-bucket at the bottom of the elevator-shaft and hoisting to the top of the same, where it is carried to a point over the hopper and automatically dumped into the same.

The principal features of rnyinvention consist in an inclined track, upon which operates a truck carrying a plate which is adapted to automatically grip and hold the line by which the dumping-bucket is operated. This plate retains its grip upon the line until the bucket is carried to the desired point over the hopper and until the dum p-bucket is again lowered to the end of the track, Where the grip is automatically released, so as to .permit the bucket to descend into the elevator-shaft.

To this end the invention consists in the novel construction, combination, and arrangement of parts to be hereinafter more specifically described, and particularly pointed out in the claims.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification,and wherein like letters of reference indicate similar parts throughout the several views,in which- Figure l is a side elevation, partly in section. Fig. 2 is a perspective view of the dumpbin and a portion of the chutes. front view. Fig. 4 is a horizontal sectional view taken on a line above the dump-bin. Fig. 5 is a perspective view of the guardplate of the carrier. Fig. 6 is a perspective view of the hanger carried by the operatingline. Fig. is a plan view of a portion ofthe plate. Fig. 8 is a side View of the same. Fig. 9 is a cross-sectional view of the saine.

Fig. 3 is a' The frame for supporting the track may be of any desired construction and in the drawings is shown as composed of four supportingcolumns a a and b b, which are in the form of ordinary I-beams. Arranged in front of the columns ce is a dump-bin c, having chutes d, which rest upon and are secured to a cast block f, supported by a pin g, carried by a hanger 7L of the bell k, the said bell operating within an ordinary hopper Z, and the hangerl L of the bell being connected to the walkingbeam m, which is pivotally supported at its center by as upportin g-post n, which also carries the pulley o to receive the operating cord or belt p. This belt passes around the pulleywheel q, mounted on top of the hanger 7L', and over the pulley-wheel r, which is suitably supported over one of the supporting-columns b. This pulley-wheel r is preferably a double one, in order that the cord or belt s, connecting with the pulley on the engine, may also be attached thereto. By crossing the belt or cordp, which is attained by means of the pulley o, the dumpbin and chutes are turned one-quarter way round by each reversing of the engine, so that the charge within the dump-bin will be evenly distributed over the bell.

Supported by the columns a is a suitable track a', which is arranged at an angle of about forty-five degrees, with the lower end of the same at a point between the columns b and directly over-the elevator-shaft. The lower ends of the rails forming this track are turned upwardly, so as to form a stop for'the carrier,which rides on the track, the said rails being supported by a hanger which is connected to the cross-piece a?, connecting thev two rails together.

The carrier consists of the two wheels b', which are mounted upon a common axle b2, which also has centrally mounted thereon a pulley h3 to receive the operating-rope c", this rope .also passing over the pulley c2, lnounted upon an axle secured near the upper end of the track-rails and is attached at its lower end to a hanger c3, having a recess c4, and to which hanger is attached a holder cl, which carries the dump-bucket d2. Fulcruined to the axle b2, upon which the track-wheels b are mounted,are outwardly-extending hook-arms cl3, which are adapted to engage upon a bolt d4, passing through the lower or curved ends IOO of the track-rails a when the carrieris in the lowered position. Also f ulcrumed to this axle b2 are links c,which carry the guard-plate c2, which is provided with an aperture e3, through which the carrying-rope c' passes. Secured on the underneath face of this guard-plate are suitable cleats c4, forming a guide for the plate j, which is adapted to slide between said cleats and provided at its forward end with a recess f2 to receive the carrying-rope c. This plate f' is operated by means of an arm f3, passing through an elongated slot f4 of the carrier-plate c2 and attached to the plate f', said arm j"3 havinga weighted extension f5 and being supported by means of arms f, fulcrumed to the axle ligand connected by a cross-rod f7. The bucket d2 is retained in position for filling by means of a lever g', having a hook end g2 to engage over the bucket and which is released from its engagement by the lever riding against a connecting-bar g3, attached to the two track-rails a at a point directly above the dump-bin c.

Then the carrier has been lowered to the end of the track. and at which point it is directly over the elevator-shaft, the arms f5, coming into engagement with the cross-rod d4, are lifted so as to release the plate f out of its engagementin the recess c4 of the hanger c, and thus permit the bucket to descend into the elevator. IVhen filled and again hoisted, the horns 7L,whieh are provided on the holder d', come into engagement with the hook-arms d3, so as to lift the same and allow the carrier to be moved upward on the inclined track by means of the carrier-cord c. This upward movement of the carrier removes the arms]3 from their resting-place upon the cross-rod d4 and permits the weighted end f5 of the said arms to operate that portion f3 thereof, so as to again force the plate f into the recess c4 of the bucket-hanger, thus locking the bucket securely in this position, where it is held until it is carried to the point directly over the dump-bin, at which time the lever g is disengaged from the bucket by its action against the connecting-bar g3 and the bucket tilted, so as to permit the emptying of'its contents into the dump-bin c. When the engine is reversed, this du mp-bin and its chutes are given one quarter-turn by means of the connecting belt or cord p, and the ore, lime,or other material which has been d umped into the bin is thereby evenly distributed over the bell of the hopper.

I desire to call particular attention to the construction of the carrier-plate, which enables the lookin g of the carrying-rope in such a manner as to retain the dump bucket in the upright position until the point is reached at which it is desired to deliver the load of the bucket, and also to the automatic means by which the plate j is released and the carrying-cord permitted to operate through the carrier plate, so as to permit the bucket to descend into the elevator-shaft. It will also be noted that various changes may be made in the details of construction without departing from the general spirit of my invention.

Ilaving fully described my invention, what I claim as new, and desire to secure by Letters Patent, is*

l. In combination with a hopper, a receiving-bin, oppositely-disposed chutes carried by said bin, a walking-beam, a bell secured to a hanger and supported by said walking-beam, a pulley supported by said hanger and secured to said receiving-bin, means engaging said pulley whereby the bin and chutes are caused to reci procate,and a traveling carrier arranged above said bin, substantially as shown and described.

2. In combination with a hopper, a receiving-bin, chutes carried by said receiving-bin and arranged opposite each other, a walkingbeam, a bell suspended from said beam, said walking-beam carrying a pulley, connections between the pulley and engine, whereby the receiving-bin and chutes are oscillated to evenly distribute the ore in the hopper, a track and carrier arranged above said receiving-bin, a guard-plate carried by said carrier, said guard-plate being provided with an aperture through which the operating-rope passes, a weight-actuated plate carried by said guard-plate whereby said operating-rope is locked when the carrier is brought over the receiving-bin and unlocked when returned to a position over the elevator-shaft, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK O. MILLER.

lVitnesses: Y

H. P. HEEDY, J. A. FITHIAN.

IOO 

